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CVE-2025-38272

net: dsa: b53: do not enable EEE on bcm63xx PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: net: dsa: b53: do not enable EEE on bcm63xx BCM63xx internal switches do not support EEE, but provide multiple RGMII ports where external PHYs may be connected. If one of these PHYs are EEE capable, we may try to enable EEE for the MACs, which then hangs the system on access of the (non-existent) EEE registers. Fix this by checking if the switch actually supports EEE before attempting to configure it.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 22256b0afb12333571ad11799fa68fd27e4f4e80 before 155bc8f94d52c01c0952acee8156f05f26d81ef6; affected 22256b0afb12333571ad11799fa68fd27e4f4e80 before 3fbe3f4c57fda09f32e13fa05f53a0cc6f500619; affected 22256b0afb12333571ad11799fa68fd27e4f4e80 before 2dbccf1eb8c04b84ee3afdb1d6b787db02e7befc; affected 22256b0afb12333571ad11799fa68fd27e4f4e80 before 1237c2d4a8db79dfd4369bff6930b0e385ed7d5c
Linux / Linuxaffected 4.15; unaffected 0 before 4.15; unaffected 6.6.160 through 6.6.*; unaffected 6.12.46 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through *

CWE

No CWE identifiers supplied.

References